Mexico is witnessing a hidden refugee crisis on its doorstep. Citizens from nearby countries who formerly left Guatemala, Honduras and El Salvador and passed through Mexico in search of economic opportunities have for a number of years been leaving their countries due to fear for their lives and personal liberty. This briefing demonstrates that the Mexican government is routinely failing in its treaty obligations under international law to protect those who are in need of international protection, as well as repeatedly violating the non-refoulement principle, a binding pillar of international law that prohibits the return of people to life-threatening situations.